Cybersecurity Vulnerabilities

CVE-2025-13757: Critical SQL Injection Flaw Exposes Devolutions Server Last Usage Logs

Overview

CVE-2025-13757 describes a SQL Injection vulnerability discovered in the “last usage logs” functionality of Devolutions Server. This vulnerability affects versions up to and including 2025.2.20 and 2025.3.8. Successful exploitation of this flaw could allow an attacker to execute arbitrary SQL queries, potentially leading to data breaches, modification of sensitive information, or complete system compromise.

Technical Details

The vulnerability resides within the last usage logs section of Devolutions Server. Improper sanitization of user-supplied input related to filtering or querying these logs allows an attacker to inject malicious SQL code. The exact parameter vulnerable to injection isn’t publicly specified beyond “last usage logs”, therefore, a thorough security assessment and code review of the related code are crucial. The vulnerability exists because the application doesn’t properly validate or escape user-provided input before using it in a SQL query. This can lead to unintended execution of attacker-controlled SQL commands.

CVSS Analysis

According to the provided information, a CVSS score is not available (N/A). Typically, SQL Injection vulnerabilities are considered highly critical. Without an official CVSS score, we must assume the worst-case scenario and treat this vulnerability with high priority until more information is available. Organizations should prioritize patching and mitigating this issue immediately.

Possible Impact

The impact of a successful SQL Injection attack can be severe. Potential consequences include:

  • Data Breach: An attacker could extract sensitive information stored in the database, such as usernames, passwords, API keys, or confidential data managed by Devolutions Server.
  • Data Modification: Malicious SQL queries could be used to modify or delete data, leading to data integrity issues and potential service disruption.
  • Privilege Escalation: An attacker might be able to escalate their privileges within the database, gaining access to administrative functions.
  • System Compromise: In some cases, SQL Injection can be leveraged to execute operating system commands, potentially leading to complete system compromise.
  • Denial of Service: An attacker can inject SQL that causes the database server to become unresponsive, leading to a denial of service for legitimate users.

Mitigation and Patch Steps

Devolutions has likely released a patch to address this vulnerability. The recommended course of action is to:

  1. Upgrade Devolutions Server: Immediately upgrade your Devolutions Server installation to the latest version. Make sure the updated version is newer than 2025.2.20 and 2025.3.8. Refer to the Devolutions documentation for detailed upgrade instructions.
  2. Review Security Configurations: Ensure that your Devolutions Server is configured according to security best practices. This includes strong password policies, access controls, and regular security audits.
  3. Web Application Firewall (WAF): Consider implementing a Web Application Firewall (WAF) to filter out malicious SQL Injection attempts. Configure the WAF with rules that specifically target common SQL Injection patterns.
  4. Input Validation: Even with a patched version, implement robust input validation at the application level. This includes validating the type, format, and length of user-supplied data before using it in SQL queries.
  5. Principle of Least Privilege: Ensure that database users only have the minimum necessary privileges required to perform their tasks. This limits the damage that an attacker can cause if they manage to exploit a SQL Injection vulnerability.
  6. Regular Security Audits: Conduct regular security audits and penetration testing to identify and address potential vulnerabilities in your Devolutions Server environment.

References

Cybersecurity specialist and founder of Gowri Shankar Infosec - a professional blog dedicated to sharing actionable insights on cybersecurity, data protection, server administration, and compliance frameworks including SOC 2, PCI DSS, and GDPR.

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